I found mushrooms on sale for a dollar so I picked some up. I also had a few sweet potatoes and surprisingly an onion that needed to be used real soon in addition to muenster cheese in the freezer that I had picked up on sale a while back. What to do with all these? Make hamburgers and fries, of course.
I bake my hamburger patties in the oven at 350 degrees for 20-30 minutes, flipping once. I find this is easier for me than cooking them all in a skillet, especially since we don't have a grill. I sliced the onions thin and sauteed them with the mushrooms in Worcestershire sauce. As for the sweet potatoes, I peeled them and then placed them on a cookie sheet with some olive oil and salt and pepper for about 20 minutes or until cooked through.